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Digital Systems

Radiographic Film

Intraoral Survey Organization

Radiolucent vs. Radiopaque

General Anatomy of the Maxilla and Mandible

Maxillary Anterior Landmarks

Maxillary Posterior Landmarks

Summary of Maxillary Landmarks

Maxillary Anatomical Landmarks

Mandibular Anterior Landmarks

Mandibular Posterior Landmarks

Summary of Mandibular Landmarks

Mandibular Anatomical Landmarks

Bitewing Surveys

Full Mouth Surveys

Review of Landmarks on Surveys

Intraoral Radiographic Anatomy

Summary

References / Additional Resources

__Table 2. Summary of Mandibular Radiographic Landmarks.__<table >
 <tbody>
 <tr>
 <th >Landmark</th>
 <th >Brief Description</th>
 <th >Radiolucent&nbsp;/ Radiopaque</th>
 <th >Periaplical</th>
 <th >Bilateral&nbsp;/ Unilateral</th>
 <th >Alternate Name</th>
 </tr>
 <tr>
 <td>External Oblique Ridge</td>
 <td>Diagonal Line</td>
 <td>Radiopaque</td>
 <td>Molar</td>
 <td>Bilateral</td>
 <td>Exteranal Oblique Line</td>
 </tr>
 <tr>
 <td>Genial Tubercle</td>
 <td>Doughnut-shaped</td>
 <td>Radiopaque</td>
 <td>Cental Incisor</td>
 <td>Uniilateral</td>
 <td>Mental Spine</td>
 </tr>
 <tr>
 <td>Inferior Border of Mandible</td>
 <td>Horizontal Band</td>
 <td>Radiopaque</td>
 <td>Any Mandibular</td>
 <td>Bilateral</td>
 <td>Lower Border</td>
 </tr>
 <tr>
 <td>Internal Oblique Ridge</td>
 <td>Diagonal Line</td>
 <td>Radiopaque</td>
 <td>Molar</td>
 <td>Bilateral</td>
 <td>Mylohyoid Line</td>
 </tr>
 <tr>
 <td>Lingual Foramen</td>
 <td>Pinpoint dot</td>
 <td>Radiolucent</td>
 <td>Central Incisor</td>
 <td>Bilateral</td>
 <td>&nbsp;</td>
 </tr>
 <tr>
 <td>Mandibular Canal</td>
 <td>Tubular</td>
 <td>Radiolucent</td>
 <td>Premolar 
 Molar</td>
 <td>Bilateral</td>
 <td>Inferior Alveolar Nerve Canal</td>
 </tr>
 <tr>
 <td>Mental Foramen</td>
 <td>Circular</td>
 <td>Radiolucent</td>
 <td>Premolar 
 Canine</td>
 <td>Bilateral</td>
 <td>&nbsp;</td>
 </tr>
 <tr>
 <td>Mental Fossa</td>
 <td>Diffuse</td>
 <td>Radiolucent</td>
 <td>Central Incisor</td>
 <td>Unilateral</td>
 <td>&nbsp;</td>
 </tr>
 <tr>
 <td>Mental Ridge</td>
 <td>Inverted V</td>
 <td>Radiopaque</td>
 <td>Central Incisor 
 Lateral Incisor 
 Canine</td>
 <td>Bilateral</td>
 <td>&nbsp;</td>
 </tr>
 <tr>
 <td>Submandibular Fossa</td>
 <td>Diffuse</td>
 <td>Radiolucent</td>
 <td>Premolar 
 Molar</td>
 <td>Bilateral</td>
 <td>Submandibular Gland 
 Fossa 
 Mandibular Fossa</td>
 </tr>
 </tbody>
</table>

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Summary of Mandibular Landmarks - Intraoral Radiographic Anatomy - Dentalcare

Landmark	Brief Description	Radiolucent / Radiopaque	Periaplical	Bilateral / Unilateral	Alternate Name
External Oblique Ridge	Diagonal Line	Radiopaque	Molar	Bilateral	Exteranal Oblique Line
Genial Tubercle	Doughnut-shaped	Radiopaque	Cental Incisor	Uniilateral	Mental Spine
Inferior Border of Mandible	Horizontal Band	Radiopaque	Any Mandibular	Bilateral	Lower Border
Internal Oblique Ridge	Diagonal Line	Radiopaque	Molar	Bilateral	Mylohyoid Line
Lingual Foramen	Pinpoint dot	Radiolucent	Central Incisor	Bilateral
Mandibular Canal	Tubular	Radiolucent	Premolar Molar	Bilateral	Inferior Alveolar Nerve Canal
Mental Foramen	Circular	Radiolucent	Premolar Canine	Bilateral
Mental Fossa	Diffuse	Radiolucent	Central Incisor	Unilateral
Mental Ridge	Inverted V	Radiopaque	Central Incisor Lateral Incisor Canine	Bilateral
Submandibular Fossa	Diffuse	Radiolucent	Premolar Molar	Bilateral	Submandibular Gland Fossa Mandibular Fossa